(19)
(11) EP 2 106 909 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.11.2011 Bulletin 2011/46

(43) Date of publication A2:
07.10.2009 Bulletin 2009/41

(21) Application number: 09425127.9

(22) Date of filing: 03.04.2009
(51) International Patent Classification (IPC): 
B41F 13/30(2006.01)
 B41F 13/40(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA RS

(30) Priority: 04.04.2008 IT FI20080064

(71) Applicant: Fabio Perini S.p.A.
55100 Lucca (IT)

(72) Inventors:
  • Benvenuti, Angelo
    55100 Lucca (IT)
  • Lencioni, David
    55040 Massarosa Lucca (IT)

(74) Representative: Mannucci, Michele et al
Ufficio Tecnico Ing.A. Mannucci S.r.l. Via della Scala 4
50123 Firenze
50123 Firenze (IT)

   


(54) Printing machine and method for its calibration


(57) The printing machine comprises a central roller (3); at least one printing unit (5) with a cliché roller (7) and means (9, 13) for applying ink to the cliché roller. A control unit (50) in also provided, interfaced with at least one actuator (19) to move the printing unit towards the central roller. The printing unit (5) comprises at least one load sensor (41) and at least one position transducer (43) associated with the cliché roller, interfaced with the control unit. This latter is programmed to perform a calibration of the printing unit with a first step to move the printing unit towards the central roller until reaching a zero position defined on the basis of a signal of said at least one load sensor.







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